type test1 struct {
A int json:"a"
}

type test2 struct {
A [][]*test1 json:"a"
}

Won't work. Getting error:

Converting type main.test2

• slice field test2.A
  panic: cannot find type for ptr (a/)

goroutine 1 [running]:
main.main()
../.../......./main.go:25 +0x114
exit status 2

If you change test2.A to 1d array, then works. So multi dimensional array of pointers doesn't seem to work for me